Door or closure for



eerei'iieiz; remmers, oF eAL'rMomi 'imi i m No il R s?. il D iii? W Kii.. iii iii;

To m whom, 2115 zin/ey @m2/earn:

Be it lamme time iooiieioi; B. Aiorzeifvs, e citizen of lle 'UmiieclSieies, residing; et Het timere, im elle iieie ef Maryland, here in- 5Verified certain eeweiil. useful mpro'veiiients in @were or iesiiree foriy-iilzis, o?? which iiie ioiiowing :i ejoeei i. i

This iiwemiiori relates* io en impreved door elosiire elrykiine.

The ei ille inveiiiion is to provide dry-kiln Witi: i "hie door o'improved. ooestruet-ion that wiii epee. by raising from the bottom, f

Hereieiore dry-f kilns lia-.ive hed wooden doors that opened 'by raisingor sliding in guides. floors ere usueily very heavy, ,arid fromfiifieieiioes of tempereisure and humidity oiiien become warped andstick fest in their guides enel require several men to raise tiiem. .Inconsequence of shrinkage and. warping die-jy also open their seems middo net i iight ai, elle iop, allowing he escape' of iieei, emi,"beside-s, require ropes, puileys, weights, eempiieeied adjustment thatmake them expensive and troublesome to handle.' liiyimprovementovercomes all these objeeiione and provides e eiosure that is effective.simple, durable, easily lienc'led, and inexpensive iso ee' sir/mieli.

The invention. iiiiisretecl in Une aeeom penyieg drewinge, Wiiiei1-Figiire l isepei eeiive end View of a dryliiis., showin my improved doorin the closed pesiioii. ie e. perspeeiive eufl VView 35 ehe` ng thefloor raised. Fig. il is a. smell porieii dem' in seeiion.

Tile (loer .may be implied io L {ivy-kiln oi' enyi'orm orpreierrefleeesiu'ue'bien. The form in the drawings ie that of ..if er m13" Suit--.n l. mil ie in iii-5^, fashion of f Secured by ite upper end io the emiof. the dry-kiln house or over the entrance. The iop oi this @mires maybe secured under eine horizontal bei.' r over the er1- irenee. Theeoliensof Lire @arrives door has e l pocket or hem .5' all the weyingress, @eritemingj :i liar or roller. The emis oi this loer er rend tothe veriieei edges of the @eures door. A. series of liorizoniziipoeiiei's are fomieil en. the ezm'ves door. 'Flies ilioeiies, however,ile not extend the entire width of ilie (1i-mms, bei stop short of itsve u. A Vertieei margin o is thus iein ai] .ee/ii edge, seid merginextending the eiifirelieigiib of the om "le door up and down pesi: 'theemls oi fill poekeist. A thin ber 'zu is placed in eee" ai seid pockets(see Fig. El) to stiffeu The @am door iii the erosswiee direction., bei;elim. to remain flexible in elle veriieei direeiiim eed capable ofrolling up, es shown in Fig.

When thefeenves or iiexibie door each Vertical marginal enige e ie el-4movable pressure-strip i?, 'which w takes position in the rebbet e sindseid canvas edge against the embw ip @mail thereby makes a tight join'o.These vert-imi. pressurestrips may be held in pleee eiiinsi; themarginal canvas' ed; in any; ,hui-wifi ,ii/ey. One Way is to aimee iliemsuimiiie hinges G, so as to permil; them to swing operi or closed, andwhen. eloseci to hohl miem closed. The hinges may be springlxiiiges oi:my well-known type that will oreste e. einer' pressure on the strip Fsuiiieieilt to iioiil. vii closed.

The canvas door opened by raising from. ta.. bottom to alle top. In thepresen@ inl-- sten-.fe this is done by means of corde. Two corrie haveone of their eues eiieeiiei'i to Elie cross-ber fr on the inner side ofiile eri-- trance, then exbenddown and under Lilie roi leru :l pressesthe Lire outer side of the Genres rior# "to ygulleys e y, y', and y,respectively, see-uri. .i er ilu.' entrance. The two Corde .fr :12'exten# fxov' the said pulleys dominer-ril, :imi 'lire 1- corrie may befsisieeefi io n, suiiziiiie oeriee 1i; wiii new be eee ilieiiwiien tileensures door Lg ie misefl, es in Fig. the two, e

bei in ille boiiom hem s, end then. upiiririiori rails, and as the lowerend s of the hinged strips F do not extend fully down to the floor theywill take over or above the ends of the roller-bar andthereby hold itdown close to the floor. Thus the canvas door Q serves to tightlyclosethe entrance to the dry-kiln.

The peculiarconstruction here shown for opening the canvas door byraising from the bottom may be changed or' modified. It is not essentialthat it roll up by a roller placed at the bottom.

The material for the door may be made tight-z'. e., waterproof andsteam-proofby oiling, painting, or other known process.

If a truck in a dry-kiln standing on the inclined track should startforward and push against this canvas door, the same would yield, thetruck would run out, andthe canf vas door would swing up and allow thelumber-truck to pass and no damage to the door Iwould ensue, assometimes happens in the use of wooden and other rigiddoors for driers.

Having thus described my invention what I claim is 1. A closure for theentrance to dry-kilns, having in combination an outer verticalfacing-strip, d, at each side of the entrance; a vertical jamb-strip, c,also at each side, said jamb-strip and facing-strip together forming arabbet extending to the door of the kiln; a exible curtain secured atthe top of the entrance and the suspended end of the curtain carrying aroller, the marginal edgeof the curtain and the end of the roller havingposition in the rabbet; and a vertical pressurestrip, F, hinged to eachfacing-strip and adapted to swing around and press the margin of thecurtain against the jamb-strip and its outer surface becoming flush withthe surface of the facing-strip, the lower end, s, of saidpressure-strip being shorter than said rabbet and leaving a spacebetween it and the floor whereby the said lower end of the pressurestriptakes over the roller on the curtain and prevents said roller from beingdrawn up, as set forth. l

2. The combination in a dry-kiln entrance, of .a facing-strip at eachsideof the entrance; a jamb-strip forming with the facing-strip arabbet; 'a canvas or iiexible door which raises and lowers with itsvertical marginal` edges moving in said rabbet, and said door providedwith horizontal cross-pockets, t, whose length is lessv than the Widthofthe canvas doorthereby forming a vertical margin, lu, ,extending pastthe ends of all the pockets the entire height of the door; a cross-bar,w, in each of said cross-pockets; and vertical pressurestrips which,when the canvas door is closed, have position in the rabbet and clampthe said vertical margins, 12, without clamping the said cross-bars, asset forth.

In testimony whereof I affix my signature in the presence of twowitnesses.

RODERICK B. ANDREWS. \Vitnesses:

CHARLES B. MANN, J r., CHAPIN'A. FERGUSON.

